CVE-2024-47554
📋 TL;DR
This vulnerability in Apache Commons IO allows attackers to cause denial of service by consuming excessive CPU resources through maliciously crafted input to the XmlStreamReader class. It affects applications using Apache Commons IO versions 2.0 through 2.13.0. The impact is limited to resource exhaustion rather than data compromise or remote code execution.
💻 Affected Systems
- Apache Commons IO
📦 What is this software?
Bluexp by Netapp
E Series Santricity Unified Manager by Netapp
View all CVEs affecting E Series Santricity Unified Manager →
⚠️ Risk & Real-World Impact
Worst Case
Complete denial of service for applications processing XML input, potentially causing application crashes or unavailability.
Likely Case
Degraded application performance and increased CPU usage when processing malicious XML input.
If Mitigated
Minimal impact with proper input validation and resource limits in place.
🎯 Exploit Status
Exploitation requires ability to provide malicious XML input to vulnerable applications.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.14.0 or later
Vendor Advisory: https://lists.apache.org/thread/6ozr91rr9cj5lm0zyhv30bsp317hk5z1
Restart Required: Yes
Instructions:
1. Identify applications using Apache Commons IO
2. Update dependency to version 2.14.0+
3. Rebuild and redeploy applications
4. Restart affected services
🔧 Temporary Workarounds
Input Validation
allImplement strict input validation and size limits for XML input processing
Resource Limits
allConfigure CPU and memory limits for applications processing XML
🧯 If You Can't Patch
- Implement WAF rules to block or limit XML input size
- Isolate vulnerable applications behind rate limiters
🔍 How to Verify
Check if Vulnerable:
Check application dependencies for Apache Commons IO version 2.0-2.13.0Check Version:
Check Maven/Gradle dependencies or examine commons-io-*.jar file versionVerify Fix Applied:
Verify Apache Commons IO version is 2.14.0 or higher in application dependencies📡 Detection & Monitoring
Log Indicators:
- Unusually high CPU usage spikes
- Application timeouts when processing XML
- Increased garbage collection activity
Network Indicators:
- Large XML payloads to XML processing endpoints
- Repeated XML requests to same endpoint
SIEM Query:
source="application_logs" AND (message="CPU usage spike" OR message="XML processing timeout")